Effect of flame retardants on flame retardant,mechanical, and thermal properties of sisal fiber/polypropylene composites |
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Affiliation: | 1. Department of Chemistry, Amirkabir University of Technology (Polytechnic), P. O. Box 15875-4413, Tehran, Iran;2. Colour and Polymer Research Centre, Amirkabir University of Technology (Polytechnic), P. O. Box 15875-4413, Tehran, Iran;1. Ryoko Chemial Co., Ltd., 4-12-20 Nihonbashihonmachi, Chuoku, Tokyo, Japan;2. Doshisha University, Department of Mechanical and Systems Engineering,1-3 Tataramiyakodani, Kyotanabe, Kyoto, Japan;1. School of Textile, Tianjin Polytechnic University, Tianjin 300387, China;2. Key Laboratory of Advanced Textile Composite, Ministry of Education of China, Tianjin 300387, China;1. Beijing Institute of Technology, School of Materials, National Engineering Technology Research Center of Flame Retardant Materials, 5 South Zhongguancun Street, Haidian District, Beijing 100081, PR China;2. Beijing Institute of Technology, School of Mechatronical Engineering, PR China |
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Abstract: | A flame retardant efficiency of flame retardants; ammonium polyphosphate (APP), magnesium hydroxide (Mg(OH)2), zinc borate (Zb), and combination of APP with Mg(OH)2 and Zb in sisal fiber/polypropylene (PP) composites was investigated using a horizontal burning test and a vertical burning test. In addition, maleic anhydride grafted polypropylene (MAPP) was used as a compatibilizer to enhance the compatibility in the system; i.e. PP-fiber and PP-flame retardants. Thermal, mechanical, and morphological properties of the PP composites were also studied. Adding the flame retardants resulted in improved flame retardancy and thermal stability of the PP composites without deterioration of their mechanical properties. APP and combination of APP with Zb effectively enhanced flame retardancy of the PP composites. No synergistic effect was observed when APP was used in combination with Mg(OH)2. SEM micrographs of PP composites revealed good distribution of flame retardants in PP matrix and good adhesion between sisal fiber and PP matrix. |
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Keywords: | A. Polymer–matrix composites B. Thermal properties B. Mechanical properties Flame retardants |
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